Fuel-feeding device for automobiles.



E w. H. MUZZY.

' FUEL FEEDING DEVICE FOR AUTOMOBILES.

APPLICATION map MAR. 20. m5.

1,21,7'? Patented Oct. 10,1916.

2 SHEETS-SHEET 1.

INVENTOR.

W. H. MUZZY. FUEL FEED ING DEV'ICE FOR AUTOMOBILES.

\ APPLICATION FILED MAR. 20

MM on. 10,1916;

2 SHEETS-SHEET 2.

EVFLLIAJE H. MUFZESY,

8F BAYTON, OHIO.

FUEL-FEE QENG EOE, AUTOIYIQBILES.

Application filed March :29,

To all whom it may cow/2m:

Vi: a citizen of the liln i L ti;

Dayton, in the county (Hi State 01": Shim have invcr and useful.l1uprevenients .n l uehll eliug- Devices for Azuion ohiles, which ly (i Clare the following to he aflljull, i'i; exact description.

This invention relates to improvements in motor vehicles and has more particular relation to iiuprwenients in mechanisms systems and devices for the feeding" oi? liquid gasolene to the carlJun-etcrs oi plosive gas engines.

One of the objects oi: the invention the improven'ient oi? the devices and niechanisins at present employed in the so called vacuum systems for feeding; gnseieue from a relatively low supply tank to 'lhe czu'biu'eter of the engine Another object of the invention is the elimination inniy improved hull: oi. all floats, float va ves, flap valves anal other similar mechanical valves which are I:lll ject to inisoperation and deraufgeuumt the presence oi? small particles oi :l'h"

other foreign matter in he gasnlone or from wear.

A further Ol)](3(3i3 of the invenlien is elimination oi all movable parts which is well known are subject to inisopc and derangement from the vibration and jars they are suh icctecl Uo when used in con noction with motors and motor A still further ob iect oi" the. invention to utilize the vacuum to raise the i to a gravity fecal tank and to cont feed. from such tank in the carluure'. the presence or absence oi. the gran within the grav L 1k without my ahlc mechanical dcvii'zes.

in carrying these and other oh iects of the invention inio ell'ect l utilize certain constructions, conihiiiations zuu'l arrange HIQDi'S of parts all of which w ll he hereinafter more pa:'-ticul:-irly set :%*o i. and claimed.

In cirrrying out my inveiu en in its preferred form of enihmliineni; have show Specificaiion of Letters Patent.

l-itenied (let-{fl 191% 1915. Seriz11Nc.l5,89.,.

without departing from the spirit of this invention.

in he a (H'lfldld drawings: Figure 1 re aresenis in HitlQ levation, a as engine, parts o'l' the chain the carburetor, the main ,gasoleue iank aiul my improved vacuum and siphon tank and connections and, ifiig. 2 represents a iletail vertical scei1 through my improved vacuum and hen tank aiul connections.

in general terms the invention may be described as utilizing part of the suction in the intphc Iuaniibhl of the engine to create a vacuum in a small tanlq secured lo the. (lash board. of the machine above the engine and thus draw the grasolcne from the main supply ouilc at the rear up into this The gasolenc is then fed by vacuum tank. gravity from this vacuum tank or chamber to an lm'niedial'e trap or chmnher and then from this latter chamber by a siphon into a chamber which supplies the carlnb voter hy ga'raviiy. ll heu the level of the pizisnlcne in the carluircter supply chamber ulls too low the lower (ml of {H1 air pipe in this chamhm' is uncovered and air rushes ihroup h genie pipe nto the upper end of the vacuum chamber and relieves the vncuum. The giasohine then flows by gra l pipe oi the same, 24- the cm'hureter, 25 the intake manifold, 27 the main gasolcnc tank at the rear of the machine, 23 the supply ipe ior' the cnrhureier, T the pipe connecting: the 'vacrunn tank and the main tank and f the hrcather pipe of the vacuum tunl the pipe 3 suction to he mounted in 'v'ht amount of iii) exerted in the chamber 1. The size of the aperture in this wall is determined by the type of engine with which my invention is to be used but after being once determined it remains fixed and set. An ordinary ball check valve 5 is also mounted in the pi e 3 to prevent any air passing back and PI'OJBCtS upward into the same about two thirds of its height. By this means there is always sufiicient gasolene 1n the chamber 1 to more than fill the chamber 10 and to supply the gasolene used from the chamber 15.

The gasolene when relieved of the vacuum fiowsfrom the chamber 1 down through the aim 11 until the chamber 10 is almost filled. The gasolene then starts to flow through the siphon 12 into the pan 16 fast to the side wall of the chamber 1-5.- The gasolene flows through an aperture 17 in the bottom of this pan and raises the level of the gasolene in the chamber 15 until the lower end of the pipe 8 is covered. This pipe projects 'from near the bottom of the pan 16 to near the top of the chamber 1 and is .an air vent pipe for relieving the vacuum in the chamber 1, so that when the lower end is covered the air is cut oil from the chamber 1 and the vacuum is again established. The gasolene is drawn up the pipe 8 into the chamber 1 until the level of the gasolene in the chamber 15 descends sufficiently to permit air toagain pass up the pipe 8 when the vacuum is again relieved and the gasolene again passes down the pipe 11 and the operation is repeated. Just as soon as the gasolene covers the lower end of the pipe 8 part of the gasolene in the chamber 10 1s drawn up through the pipe 11 but the gasolene continues to flow through the siphon 12 until the level in the chamber 10 reaches the lower end of the siphon in said chamber. The diameter of the siphon pipe 12 is greater than that of the pipe 8 and a large stream of gasolene is thus fed to the chamber 15 and completely fills the pipe 8 which draws it up into the chamber 1 as before described. When the pumping action starts gasolene is being drawn from the main feed pipe 7, from the pipe 11 and from the pipe 8 but as the end of the siphon in the chamber 10 is above the lower end of the pipe 11 the latter will continue to draw or be covered while the air will start up through the pipe 8 and thus relieve the vacuum again. Any gasolene that is above the upper end of the pipe 7 when the vacuum is relieved will pass downthe pipe 7 and back to the main tank. 7

The otfice of the pan 16 is to prevent the gasolene in the chamber 15 from slopping side and to prevent the streams from the pipes 8 and 7 and the splash from the chamher 1 from entering the pipe 3. The construction and capacities of the several chambers are such that the level of the gasolene never goes above the upper end of the pipe 8. The cross sectional areas of pipes 8 and 11 are so restricted that when they are full of gasolene the chamber 1 is practically sealed and the suction through pipefi will create a vacuum sulfioient o raise the gasolene fIOInIthG" tank 27. '1 his continues as long as pipes 8 and 11 are full of gasolene as the'liquid cannot escape from them into the chamber 1' fast enough to' conteract the vvacuum being created by the intensesuction phoned to chamber 15 and finally drawn into chamber 1 again. Each time that the gasolene is drawn into the chamber 1 the pipe 7 will feed more gasolene than the engine is using, this surplus each time passing down the pipe 7 again, that is after the level of the gasolene in the chamber 1 reaches above the upper end of the pipe 7.

The pipe 23 which connects chamber 15 to the carburetor is provided with any ordinary valve 21 for opening'and closing the pipe at will. This valve is operated by a rod 22 which projects through the dashboard 26 and is provided with an operating knob. This valve 21 is a night valve and is supposed to be used if desired, when the machine is left standing for any great length of time to prevent the escape of gasolene from the chamber 15. This escape of gasolene would only be possible however if the machine had a leaky float valve in the carbureter. V

It will also be understood that while I have provided the guard plate 6 to prevent gasolene entering the pipe 3' many other constructions may be employed that would accomplish the same result.

It will be observed that witli my improved construction of tank the pipe}: is always drawing a constant stream of air saturated with gasolene gases which havebeen created bers l and "perfect operation of the engine is not 1nby the agitation of the gasolene in the chamand that for this reason the terfered with after the carbureter is once set in accord with this mixture.

It will be understood that the check valve 5 is not essential to the operation of my improved tank but it gives a more even suction on the feed pipe 7. The suction on the pipe 3 is strong enough to raise the gasolene from the main tank 27 in a spurting stream not only when the machine is on a level but also when it is climbing a 5 per cent. grade. The location of the tank 2 in relation to the tank 27 is such however that whenthe machine is going down a grade the chamber 1 of the tank is always higher than the tank 27. c

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a fuel feeding system the combination with an elevated tank having a vacuum chamber and a supply chamber, means for creating a vacuumin the vacuum chamber, an air vent for the vacuum chamber sealed and unsealed by the liquid ply chamber, a main supply tank connected to the vacuum chamber, and connections be tween the vacuum chamber and the supply chamber.

2. In a fuel feeding tion with a main tank, of an elevated vacuum tank having .a vacuum chamber and a supply chamber, means for creating a vacuum in the vacuum chamber, an air vent for the vacuum chamber sealed and unsealed by the liquid fuel in the supply chamber,

system the combinameans connecting the main tank and the vacuum chamber and means ntermediate the vacuum chamber and supply chamber, for delivering fuel to the latter irrespective of the suction in the former.

3. In a fuel feeding system the combination with a main tank, of an elevated vacuum tank having a vacuum chamber and a supply chamber, stationary means connecting the two chambers for allowing liquid chamber discharging vacuum chamber,

fuel in the sup-' to the supply chamber without to pass to the vacuum chamber, chamber sealed fuel to pass allowing air an air vent for the vacuum and unsealed by the liquid in the supply chamber, means connecting the main tank and the vacuum chamber, and means for creating a vacuum in the vacuum chamber. 4. In a fuel feeding system the combination with a main tank, of an elevated vacuum tank having a vacuum chamber, a supply chamber, and an intermediate chamber,

an air vent for the vacuum chamber sealed and unsealed by the liquid fuel in the supply chamber, a siphon in the intermediate into the supply chamher, connections between the vacuum chamber and intermediate chamber, means connecting the main tank to the vacuum cham her, and means for creating a vacuum--in the vacuum chamber.

.5. In' a fuel feeding system the combina' tion with a main tank, of anelevated vac uum tank connected thereto and having a and a supply chamber, stationary fuel feeding and air vent means connecting the vacuum and supply cham hers, said means being sealed and unsealed by the liquid fuel, and means for creating a vacuum in the vacuum chamber.

6. In a fuel feeding system the combination with an elevated tank having a vacuum chamber and asupply chamber, means for creating a vacuum in the vacuum chamber, a main tank, a feed pipe connecting this tank and the vacuum chamber, a discharge pipe for the vacuum chamber arranged to be sealed by the liquid fuel to prevent air passing into the vacuum chamber, and an air pipe extending, up into the vacuum chamber and arranged vto be sealed by the liquid in the supply chamber.

. In testimony whereof I atlix my signature in the presence of two witnesses.

WILLIAM H. MUZZY.

Witnesses:

Hmusuirr D. MiLLs, MARIE JnrrnRYs. 

